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(No Model.) W' H. MORGAN- 3Sheets-Sheef 1. TRAVELING CRANE. No. 477,437.

lwllllil llllJI l l Il Patented June 2l., 1892.

(No Model.) v a sheets-sheet Va.

W. H. MORGAN. TRAVELING GRANE.

No. 477,437. Patented June 21, 1892..

errent artnr IVILLIAM IIENRY MORGAN, OF ALLIANCE, OHIO, ASSIGNOR OFTHREE FOURTHS, TO THOMAS R. MORGAN, SR.,.TI'IOMAS R. MORGAN, .I R., ANDJOHN R. MORGAN, OF SAME PLAGE,

TRAVELING CRAN E SPECIFICATION forming part of Letters Patent N o.477,437, dated J' une 21, i892.

Application filed January 9, 1592.

.To all whom it may concern: t

Be it known that I, WILLIAM HENRY MOR- GAN, of Alliance, in the countyof Stark and State of Ohio, have invented certain new and usefulImprovements in Traveling Cranes;` and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to an improvement in traveling cranes, and moreparticularly to overhead traveling cranes having a movable trolley.

The cranes ordinarily employed for lifting heavy object-s and conveyingthem from one portion of a shop or foundry to another consists,primarily, of an overhead traveling bridge or crane mounted at its endson rails or guideways and a trolley movably mounted on the bridge orcrane and provided with a hoistingdrum and power-transmitting devicesfor actuating the hoisting-drum.

This invention relates more particularly to an auxiliary drum on thetrolley actuated by an independent motor or by power-transmittingdevices independent of the devices employed for actuating the maindrum,whereby the auxiliary drum can be rotated while the main drum isrotating and at varying speeds without altering or affecting the speedof said main drum and can be rotated while said main drum is at rest,thereby enabling the auxiliary drum to be used for lifting comparativelylight loads, and also be used for tilting ladles and like devices whilethe latter are held suspended from the main drum or drums.

My invention consists of a traveling trolley having thereon a mainwinding-drum and an auxiliary winding-drum, the devices for actuatingthe auxiliary winding-drum being independent of the actuating devices ofthe main windingdrum.

My invention further consists in the parts and combinations of parts, aswill be more fully described, and pointed out in the claim.

In the accompanying drawings, Figure l is seria Na 417.480. (No modell)aview in plan `of a trolley embodying my invention. Fig. 2 is a sideview, and Fig..3 an end View, of same.

In the several figures of the drawings the auxiliary drum and itsactuating devices are shown in full lines, while the trolley, main drum,and trolley and main-drum actuating devices are shown in dotted lines.

A represents a trolley-frame, rectangular in shape and mounted on wheelsB B,arranged in pairs, as shown. These wheels travel on rails or atraokway arranged lengthwise the traveling bridge or crane and thetrolley is propelled by an electric motor C, mounted on the trolley atone side thereof. The armature-shaft a of this motor is provided with asmall pinion ct,which latter meshes with the larger pinion a2 on a shaftc3; This shaft c3 carries a smaller pinion c4, which meshes with thelarger pinion c5 on shaft c6. This shaft carries at its opposite end apinion a7, which meshes with a pinion a8, and the latter in turn isgeared to the pinion ci on shaft am. This shaft is located over axle au,carrying the wheels B and is provided with pinion cl2, which latterengage the pinion cl3, secured to the inner faces of the wheels B ortothe axle carrying said wheels, i

From the foregoing it will be seen that the trolley is moved back andforth on the bridge by the motor C and the gearing for actuating thetrolley is totally independent of the gearing for actuating either themain or auxiliary drums.

Located on the trolley, preferably at a point opposite motor C, is themotor D for actuating the drum D. This motor carries on itsarmature-shaft CZ the pinion d', which meshes with pinion d2 on one endof shaft d3. Shaft cl3 carries at its opposite end pinion d4, meshingwith pinion-CZ5 on inner end of shaft d6. Shaft d carries at its outerend pinion el?, which meshes with pinion d8 on shaft d, This shaftextends from one side of the trolley to the other and carries the smallpinion d1", meshing with pinion d1?, fast; to the drum D. This motor andits gearing are also independent of the trolley-actuating devices, andhence is free to operate to elevate or lower the load carried by drumD', either When the trolley is in motion or at rest.

The electric motorE for actuating the auX iliary drum E is mounted onthe trolley in a plane above main drum D and actuates shaft E2 throughthe intervention of the pinions e, e', e2, and e3 and bevel-pinions e4and e5. The pinion e5 is rigidly secured on shaft E2, which latter alsocarries bevel-pinion e7, meshing with bevel-pinion esffast to theauxiliary drum E. This drum E is mounted in bearings f, secured to thepulley-beam F of the trolley and projects slightly over one end of thetrolley.

- From the foregoing it will be seen that the auxiliary drum is totallyindependent of the main drum and can be employed to assist the main drumin lifting heavy loads,can be employed independently of the main drumfor lifting comparatively light loads, and can be employed,as shown inFig. 3, for tilting ladles carried by the main drum. One of the principal advantages gained by the employment of an independent motor forthe auxiliary drum is that it allows of a great range of speed. Thisgreat range of speed cannot be obtained with a single drum and a singlemotor.

It is evident that numerous slight changes might be resorted to in therelative arrangement of parts without departing from the spirit andscope of my invention. Hence I would have it understood that I do notconfine myself to the construction of parts herein shown and described;but,

Having fully described my invention, what I claim as new, and desire t0secure by Letters Patent, is

In an overhead traveling crane, in combination with the traveling bridgethereof, a traversing Wheeled trolley carrying a main drum and anauxiliary drum, the said drums, as Well as the trolley, being actuatedeach by its own independent motor, substantially as shown and described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WILLIAM HENRY MORGAN.

\Vitnesses:

T. D. RUSSELL, II. W. HARRrs.

